20816571

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{2111}}^1$

素因数の和:2306

約数の個数: 16

約数和(自身を含む): 29399040

約数和(自身を除く): 8582469

約数列:

[1, 3, 19, 57, 173, 519, 2111, 3287, 6333, 9861, 40109, 120327, 365203, 1095609, 6938857, 20816571]

約数ペア:

[(1, 20816571), (3, 6938857), (19, 1095609), (57, 365203), (173, 120327), (519, 40109), (2111, 9861), (3287, 6333)]